Act one is comprised of multiple "play zones" where players are rated on their performance level using a star-based system. Players that complete these play zones can net some Battle Points as well as treasures, depending on their performance. These treasures have a chance of delivering what Valve describes as an "indescribably-rare Immortal Desert Sands Baby Roshan courier". Battle Pass owners who have a Battle Level of 165 or higher will be able to net twice the amount of treasures for each run, heightening their chances of getting some good loot. Players who have already made efforts to complete the campaign say it's quite a difficult task, and that hero composition as well as itemization is important, just as when playing a regular game of DOTA. For those interested, a Reddit thread with helpful tips and strategies is available here.